Alert archive / Kansas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 117, NWS Goodland, KS

July 2, 2020Graham County, Norton County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Jul 2, 2020, 7:24 PM CDT for Graham County, Norton County, Kansas. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 2, 2020, 7:24 PM CDT (00:24 UTC)
Expired: Jul 2, 2020, 8:30 PM CDT
In force: 66 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Graham County, KS, Norton County, KS

The radar

The Grand Island radar (KUEX), 149 km from the middle of the area, began a volume at 00:26 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 2, 2:58 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.4 hours before the alert went out and 184 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 3485 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 1369 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 182 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Goodland, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 2, 7:22 PM CDT, 2 minutes earlier.

Area forecast discussion, Jul 2, 7:22 PM CDT, 2 minutes before

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Hazardous weather outlook, Jul 2, 7:20 PM CDT, 4 minutes before

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In the hours before

Local storm report, Jul 2, 7:01 PM CDT, 23 minutes before

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Local storm report, Jul 2, 7:04 PM CDT, 20 minutes before

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Special weather statement, Jul 2, 7:15 PM CDT, 9 minutes before

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Local storm report, Jul 2, 7:18 PM CDT, 6 minutes before

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Special weather statement, Jul 2, 7:19 PM CDT, 5 minutes before

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Local storm report, Jul 2, 7:22 PM CDT, 2 minutes before

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The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 2, 7:15 PM CDT	Special Weather Statement	GLD	Gove	30 min
Jul 2, 7:19 PM CDT	Special Weather Statement	GLD	Logan	26 min
Jul 2, 7:56 PM CDT	Special Weather Statement	GLD	Gove	19 min
Jul 2, 8:15 PM CDT	Flash Flood Warning	GLD	Gove	83 min
Jul 2, 8:20 PM CDT	Special Weather Statement	GLD	Gove	25 min
Jul 2, 8:27 PM CDT	Severe Thunderstorm Warning	GLD	Graham, Norton	33 min
Jul 3, 6:31 AM CDT	Special Weather Statement	GLD	Kit Carson	29 min
Jul 3, 6:36 PM CDT	Special Weather Statement	GLD	Cheyenne	24 min
Jul 3, 6:43 PM CDT	Severe Thunderstorm Warning	GLD	Cheyenne	62 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2020 Every severe thunderstorm warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.